using System;
using System.Threading.Tasks;

namespace TabletTester2025.Services
{
    public class BalanceService
    {
        public async Task<double> ReadWeightAsync()
        {
            await Task.Delay(100);
            throw new InvalidOperationException("天平真实通讯未接入，禁止返回模拟重量");
        }
    }
}